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Finding the Fourth Proportional to 551,017.44, 760,480.88 and 306,057.24

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Solution

The fourth proportional to 551,017.44, 760,480.88 and 306,057.24 is: 422,401.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,017.44 : 760,480.88 = 306,057.24 : x
  2. Step 2: Convert to fraction form
    551,017.44/760,480.88 = 306,057.24/x
  3. Step 3: Cross multiply
    551,017.44x = 760,480.88 × 306,057.24
  4. Step 4: Simplify right side
    551,017.44x = 232,750,679,205.57
  5. Step 5: Solve for x
    x = 232,750,679,205.57/551,017.44
  6. Step 6: Final answer
    x = 422,401.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.